Sensoray 826 - Manual (Page 69)

Flag Function
TO2 Timer2 timeout
TO1 Timer1 timeout
TO0 Timer0 timeout
Return Values
If the function succeeds, the return value is zero.
If the function fails, the return value is an error code.
9.3.6 S826_WatchdogKick
The S826_WatchdogKick function reads the watchdog timeout status.
int S826_WatchdogKick(
uint board, // board identifier
uint data // valid signature
);
Parameters
board
826 board number. This must match the settings of the board's dip switches as described in section 2.2.
data
Valid signature. This must be 0x5A55AA5A to kick the watchdog; any other value will fail to kick the watchdog,
although no error will be returned.
Return Values
If the function succeeds, the return value is zero.
If the function fails, the return value is an error code.
Remarks
When the watchdog system is running, the program should call this function to prevent a watchdog timeout. The
DELAY0 value determines how often this function must be called to prevent a timeout.
9.3.7 S826_WatchdogEventWait
The S826_WatchdogEventWait function waits for a watchdog event (timeout) on Timer1.
int S826_WatchdogEventWait(
uint board, // board identifier
uint tmax // maximum time to wait
);
Parameters
board
826 board number. This must match the settings of the board's dip switches as described in section 2.2.
tmax
Maximum time, in microseconds, to wait for data. See “Event-Driven Applications” for details.
Return Values
If the function succeeds, the return value is zero.
If the function fails, the return value is an error code.
826 Instruction Manual 64 Watchdog Timer